Oracle RMAN backup failure due to anti-virus software service running (4047701)

Date: 05/2006
Effected NV Version: All up to 7.4.5
OS Version: Windows 2003
Plugin version: 4.5
Application version: Oracle 9i

Description:
Backup using Oracle RMAN plugin fails because the OS is not able to provide resources required.

Symptoms:
Backup using Oracle RMAN plugin fails with message:
RMAN-03009: failure of backup command on tape_1 channel at 04/20/2006 01:19:37
ORA-19506: failed to create sequential file, name="Backup_Server:RMAN_Target::20060420-9921-1-2-DIF1.BKP", parms=""
ORA-27028: skgfqcre: sbtbackup returned error
ORA-19511: Error received from media manager layer, error text:
An error happened during job.

The trace from oracle RMAN plugin shows:
4 MESSAGE :4332 64 0 163644 TRUE = MsgGetObjectInternal(7441EA10, 749F6BB0, c9af00d7)
3 DATA :4332 56 8 163644 Failed to attach to shared memory: Not enough storage is available to process this command.
0 PLGLIB :4332 227 0 163644 DataChannelAcceptConnection failed

Even though the anti-virus software does not scan Oracle directory, it still has to be stopped when a backup runs. Also turn Oracle RMAN debug on helps to alleviate this problem.